Error in using aws-java-sdk-s3

I am trying to s3 sdk with very basic test and getting below error.

Caused by: java.lang.NoSuchFieldError: SIGNING_REGION at com.amazonaws.services.s3.AmazonS3Client.createRequest(AmazonS3Client.java:4227) at com.amazonaws.services.s3.AmazonS3Client.createRequest(AmazonS3Client.java:4203) at com.amazonaws.services.s3.AmazonS3Client.listBuckets(AmazonS3Client.java:929) at com.amazonaws.services.s3.AmazonS3Client.listBuckets(AmazonS3Client.java:936)

aws-java-sdk-s3

<dependency> <groupId>com.amazonaws</groupId> <artifactId>aws-java-sdk-s3</artifactId> <version>1.11.288</version> </dependency ClientConfiguration cf = new ClientConfiguration(); AWSCredentials credentials = new BasicAWSCredentials("<id>","<secret>"); AmazonS3 amazonS3Client= AmazonS3ClientBuilder.standard().withCredentials(new AWSStaticCredentialsProvider(credentials)).withRegion(Regions.US_EAST_1).build(); List<Bucket> buckets = amazonS3Client.listBuckets(); 

Maven dependency tree:

O] --- maven-dependency-plugin:2.10:tree (default-cli) @ AwsSdkDemo --- O] com.example:AwsSdkDemo:jar:0.0.1-SNAPSHOT O] +- org.springframework.boot:spring-boot-starter-data-jpa:jar:1.5.10.RELEASE:compile O] | +- org.springframework.boot:spring-boot-starter:jar:1.5.10.RELEASE:compile O] | | +- org.springframework.boot:spring-boot:jar:1.5.10.RELEASE:compile O] | | +- org.springframework.boot:spring-boot-autoconfigure:jar:1.5.10.RELEASE:compile O] | | +- org.springframework.boot:spring-boot-starter-logging:jar:1.5.10.RELEASE:compile O] | | | +- ch.qos.logback:logback-classic:jar:1.1.11:compile O] | | | | \- ch.qos.logback:logback-core:jar:1.1.11:compile O] | | | +- org.slf4j:jul-to-slf4j:jar:1.7.25:compile O] | | | \- org.slf4j:log4j-over-slf4j:jar:1.7.25:compile O] | | \- org.yaml:snakeyaml:jar:1.17:runtime O] | +- org.springframework.boot:spring-boot-starter-aop:jar:1.5.10.RELEASE:compile O] | | +- org.springframework:spring-aop:jar:4.3.14.RELEASE:compile O] | | \- org.aspectj:aspectjweaver:jar:1.8.13:compile O] | +- org.springframework.boot:spring-boot-starter-jdbc:jar:1.5.10.RELEASE:compile O] | | +- org.apache.tomcat:tomcat-jdbc:jar:8.5.27:compile O] | | | \- org.apache.tomcat:tomcat-juli:jar:8.5.27:compile O] | | \- org.springframework:spring-jdbc:jar:4.3.14.RELEASE:compile O] | +- org.hibernate:hibernate-core:jar:5.0.12.Final:compile O] | | +- org.jboss.logging:jboss-logging:jar:3.3.1.Final:compile O] | | +- org.hibernate.javax.persistence:hibernate-jpa-2.1-api:jar:1.0.0.Final:compile O] | | +- org.javassist:javassist:jar:3.21.0-GA:compile O] | | +- antlr:antlr:jar:2.7.7:compile O] | | +- org.jboss:jandex:jar:2.0.0.Final:compile O] | | +- dom4j:dom4j:jar:1.6.1:compile O] | | \- org.hibernate.common:hibernate-commons-annotations:jar:5.0.1.Final:compile O] | +- org.hibernate:hibernate-entitymanager:jar:5.0.12.Final:compile O] | +- javax.transaction:javax.transaction-api:jar:1.2:compile O] | +- org.springframework.data:spring-data-jpa:jar:1.11.10.RELEASE:compile O] | | +- org.springframework.data:spring-data-commons:jar:1.13.10.RELEASE:compile O] | | +- org.springframework:spring-orm:jar:4.3.14.RELEASE:compile O] | | +- org.springframework:spring-context:jar:4.3.14.RELEASE:compile O] | | +- org.springframework:spring-tx:jar:4.3.14.RELEASE:compile O] | | +- org.springframework:spring-beans:jar:4.3.14.RELEASE:compile O] | | +- org.slf4j:slf4j-api:jar:1.7.25:compile O] | | \- org.slf4j:jcl-over-slf4j:jar:1.7.25:compile O] | \- org.springframework:spring-aspects:jar:4.3.14.RELEASE:compile O] +- org.springframework.boot:spring-boot-starter-web:jar:1.5.10.RELEASE:compile O] | +- org.springframework.boot:spring-boot-starter-tomcat:jar:1.5.10.RELEASE:compile O] | | +- org.apache.tomcat.embed:tomcat-embed-core:jar:8.5.27:compile O] | | | \- org.apache.tomcat:tomcat-annotations-api:jar:8.5.27:compile O] | | +- org.apache.tomcat.embed:tomcat-embed-el:jar:8.5.27:compile O] | | \- org.apache.tomcat.embed:tomcat-embed-websocket:jar:8.5.27:compile O] | +- org.hibernate:hibernate-validator:jar:5.3.6.Final:compile O] | | +- javax.validation:validation-api:jar:1.1.0.Final:compile O] | | \- com.fasterxml:classmate:jar:1.3.4:compile O] | +- com.fasterxml.jackson.core:jackson-databind:jar:2.8.10:compile O] | | +- com.fasterxml.jackson.core:jackson-annotations:jar:2.8.0:compile O] | | \- com.fasterxml.jackson.core:jackson-core:jar:2.8.10:compile O] | +- org.springframework:spring-web:jar:4.3.14.RELEASE:compile O] | \- org.springframework:spring-webmvc:jar:4.3.14.RELEASE:compile O] | \- org.springframework:spring-expression:jar:4.3.14.RELEASE:compile O] +- com.amazonaws:aws-java-sdk-s3:jar:1.11.288:compile O] | +- com.amazonaws:aws-java-sdk-kms:jar:1.11.125:compile O] | +- com.amazonaws:aws-java-sdk-core:jar:1.11.125:compile O] | | +- commons-logging:commons-logging:jar:1.1.3:compile O] | | +- org.apache.httpcomponents:httpclient:jar:4.5.5:compile O] | | | +- org.apache.httpcomponents:httpcore:jar:4.4.9:compile O] | | | \- commons-codec:commons-codec:jar:1.10:compile O] | | +- software.amazon.ion:ion-java:jar:1.0.2:compile O] | | +- com.fasterxml.jackson.dataformat:jackson-dataformat-cbor:jar:2.8.10:compile O] | | \- joda-time:joda-time:jar:2.9.9:compile O] | \- com.amazonaws:jmespath-java:jar:1.11.125:compile O] +- com.h2database:h2:jar:1.4.196:runtime O] +- org.projectlombok:lombok:jar:1.16.20:compile O] \- org.springframework.boot:spring-boot-starter-test:jar:1.5.10.RELEASE:test O] +- org.springframework.boot:spring-boot-test:jar:1.5.10.RELEASE:test O] +- org.springframework.boot:spring-boot-test-autoconfigure:jar:1.5.10.RELEASE:test O] +- com.jayway.jsonpath:json-path:jar:2.2.0:test O] | \- net.minidev:json-smart:jar:2.2.1:test O] | \- net.minidev:accessors-smart:jar:1.1:test O] | \- org.ow2.asm:asm:jar:5.0.3:test O] +- junit:junit:jar:4.12:test O] +- org.assertj:assertj-core:jar:2.6.0:test O] +- org.mockito:mockito-core:jar:1.10.19:test O] | \- org.objenesis:objenesis:jar:2.1:test O] +- org.hamcrest:hamcrest-core:jar:1.3:test O] +- org.hamcrest:hamcrest-library:jar:1.3:test O] +- org.skyscreamer:jsonassert:jar:1.4.0:test O] | \- com.vaadin.external.google:android-json:jar:0.0.20131108.vaadin1:test O] +- org.springframework:spring-core:jar:4.3.14.RELEASE:compile O] \- org.springframework:spring-test:jar:4.3.14.RELEASE:test O] ------------------------------------------------------------------------ 

pom.xml

<?xml version="1.0" encoding="UTF-8"?> <project xmlns="" xmlns:xsi="" xsi:schemaLocation=" "> <modelVersion>4.0.0</modelVersion> <groupId>com.example</groupId> <artifactId>AwsSdkDemo</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>jar</packaging> <name>AwsSdkDemo</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.10.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> <spring-cloud.version>Edgware.SR2</spring-cloud.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-data-jpa</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>com.amazonaws</groupId> <artifactId>aws-java-sdk-s3</artifactId> <version>1.11.288</version> </dependency> <dependency> <groupId>com.amazonaws</groupId> <artifactId>aws-java-sdk-core</artifactId> <version>1.11.288</version> </dependency> <dependency> <groupId>com.h2database</groupId> <artifactId>h2</artifactId> <scope>runtime</scope> </dependency> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <optional>true</optional> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>${spring-cloud.version}</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project> 

5 Answers

Thank you everyone, issue was with having not consistent version of aws-core dependency that is pulled by spring. After manually giving core version (1.11.288) it resolves issue. As mentioned if we just not put version explicitly in pom in spring boot, it can also resolve this issue.

I ran into a similar issue com.amazonaws:aws-java-sdk-secretsmanager:jar:1.11.430 is bringing in com.amazonaws:aws-java-sdk-core:jar:1.11.125 to resolve this by specifically including the core-sdk jar in the pom:

<dependency> <groupId>com.amazonaws</groupId> <artifactId>aws-java-sdk-core</artifactId> <version>1.11.430</version> </dependency> 

I also opened an issue against the aws-java-sdk:

Though it is an old post, I am posting a solution. Hope it helps.

Follow below steps (you can skip remaining steps at any point if the problem is solved):

1. Make sure that sdk-core version and client version is same. If not then version of sdk-core must be higher than client library
2. In order to have same version for both sdk-core and client add ->

<dependencyManagement> <dependencies> <dependency> <groupId>com.amazonaws</groupId> <artifactId>aws-java-sdk-bom</artifactId> <version>1.11.308</version> <-- Add recent version <type>pom</type> <scope>import</scope> <-- don't remove </dependency> </dependencies> </dependencyManagement> 

3. Run mvn dependency:tree and check where is the mismatch.

4. Add this line to capture the reference System.out.println(HandlerContextKey.class.getProtectionDomain().getCodeSource().getLocation().getPath());

5. At the end clear your dependency cache. If you are using any IDE then invalidate that cache too

After adding the code mentioned at step 4 worked for me. sdk-core dependency was getting added by other dependency.

It's always good not to give 'aws-java-sdk-core' version manually, let spring it self decide for you and your applications with Spring boot2.

I have faced same issue,and I have resolved this issue by upgrading the aws-java-sdk-s3 version as 1.12.334 aws.java.sdk.core.version as 1.11.1032

Always make sure you are in the latest and safest dependency version.